Identify the best description of a heme group.
a. single metal atom bound to each of the four oxygen
b. binding parts of hemoglobin family of hormones that stimulate hemoglobin production under hypoxic conditions
c. one of four iron‑containing parts of hemoglobin that bind to oxygen molecules
d. multi-part protein that reversibly binds to oxygen molecules for transport in blood

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

i think the answer is 95 hope this